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2 258 728

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IPC

(21) (22)

Application

2003138253/04, 2003-12-26

(24)

Start date

2003-12-26

(22)

Actual filing date

2003-12-26

(45)

Published

2005-08-20

(72)

Inventor

Leonovich A.A.Barskij A.M.Petrov A.V.Butuzov A.S.

(73)

Holder

Leonovich Adol'F AnufrievichBarskij Aleksandr MikhajlovichPetrov Aleksandr Vladimirovich

BINDER FOR MANUFACTURING WOOD BOARDS (OPTIONS) Russian patent published in 2005 - IPC

Abstract RU 2258728 C2

FIELD: polymer materials.

SUBSTANCE: invention relates to polymer binders serving as base in manufacture of wood boards and plywood. Binder comprises urea-formaldehyde oligomer, curing agent, water and, according to first embodiment, additionally contains AlO(OH), amorphous AlO(OH)+Al₂O₃, and γ-Al₂O₃. According to second embodiment, binder additionally contains Al(OH)₃.

EFFECT: increased strength of glue joint, accelerated curing process, and shortened wood board compaction time.

2 cl, 1 tbl, 6 ex

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RU 2 258 728 C2

Authors

Leonovich A.A.

Barskij A.M.

Petrov A.V.

Butuzov A.S.

Dates

2005-08-20—Published

2003-12-26—Filed